Gong Cha is one of my fondest memories from Hong Kong. Having bubble tea with their signature cream on top was something very unique to Asian until Gong Cha started expanding to the United States and Canada.
When I was in Palo Alto visiting a friend, I had to come here for an after dinner bubble tea.
They have a guide on the table if you want to know the different levels of customizations you can do to your drink like sweetness, ice, and toppings.
Milk Foam Green Tea was what I ordered with 50% sweetness and 50% ice. The milk foam on top is a bit salty, but after a while, it starts tasting pretty good with the tea.
We rate Gong Cha: 
Address:
439 Waverley St, Palo Alto
Website:
http://gong-cha-usa.com/
